Watch-maker s jewel-setting tool



(No Model.)

H. ANDERSON.

WATCH MAKERS JEWEL SETTING TOOL. No. 246,587. Patented Sept. 6,1881.

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UNITED STATES PATENT OFFIcE.

HANS ANDERSON, OF CHICAGO, ILLINOIS.

WATCH-MAKERS JEWEL-SETTING TOOL.

SPECIFICATION formingpart of Letters Patent N0. 246,587, dated September 6, 1881.

(No model.)

To (ill whom it may concern:

Be it known that I, HANS ANDERSON, residing at Chicago, in the county of Cook and State of Illinois, and a citizen of the United States, have invented new and useful Improvements in Watch-Makers Jewel-Setting Tools, of which the following is a full description, reference being had to the accompanying drawings, in which- Figure l is a side elevation; Fig. 2, a top view; Fig. 3, an elevation of the tool which prepares the hole for the jewel. Fig. at is a modification of Fig. 3. Fig. 5 shows the detachable part of the tool shown in Fig. 4; Fig. 6, an enlarged view of Fig. 5; Fig. 7, an edge view of the device shown in Fig. 6, the same being in its socket; Fig. 8, an enlarged detail, showing, in section, a piece of a plate after it has been prepared to receive a jewel. Fig. 9 is an enlarged detail, showing the point 1 detachable. Fig. 10 is a detail showing the clamping-head d swiveled.

The objects of my invention are to provide a screw-clamp which holds the plate which receives thejewel which will not mar the plate, to provide an improved cutting-tool, and to provide a combined cutting and setting tool, all substantially as hereinafter described.

In the drawings, A represents a clamping device to receive and hold the plate which is to receive thejewel. It consists of a bar or plate, a, from which a curved arm, 1), extends, as shown in Fig. 1. In the end of bis ascrewthreaded hole which receives the screw c,which has a small flat head,d, and a lock-nut,e. The head (I is loose on c.

fis a socket permanently connected with the part a. The upper end of this socket is screwthreaded upon the outside.

9 is a feeder upon the upper end of the socket f. It is screw-threaded on the inside, and the lower portion is divided, and by means of screws it can be tightened so as not to rotate too easily on f.

B is a centering-tool fitting in the socketf, and is sharp-pointed atits lower end.

0 is aplate in which ajewel is to be set. It is clamped and held in the device A.

D is a tool for cutting the hole for a jewel and for setting thejewel. As shown, it is made of two parts, hand 2 it has a socket at its lower end to receive the part "i, and the upper end of this part c is formed like the upper end of the device shown in Figs. 5 and 7, being both curved and rounded. t'is designed to do the cutting necessary to prepare the plate for thejewel, and the upper end is designed to set the jewel.

j is a sliding collar on h, which can be held in any given position by the set-screw k.

The tool E shown in Figs. 4, 5, 6, and 7 is the same as that shown in Fig. 3, except that in Figs. 4, 5, 6, '7 a centering-point, l, is shown upon the removable part 'i, which enables the operator to use the tool E with its point I in place of the deviceBfor centering the plate 0.

In describing the cutting and setting tool I will refer to the enlarged Figs. 6 and 7. The lower end of this tool (shown in Figs. 3 to 7) is for cutting the jewel-hole. The cutting is done by the two parts at and a, (see Fig. 6,) between which two parts at and a there is a. space, b. The lower edge, a, of the part at cuts the hole for the jewel, the inner edge, n, of the part a cuts the outside of the wall 1', and the point 1) cuts the metal away, forming the space 8, so that there is room for the barnishing-instrument to catch the upper end of the wall 1 and turn it over the jewel. It isimportant to incline the inner edge, u, of the part a, in order to have the outside of the wall 7 inclined. It the outer edge, 0, of the part m were straight, the tool would be useless after it had been materially shortened by sharpening, because a would then cut away the top of the wall 1'. I give to the edge 0 of the part m an inclination equal to that of the inner edge, a, of the part a, but in an opposite direction, so that it the tool be shortened by sharpening it can still be used, the hole which an cuts growing smaller as the tool is shortened; but as the part a will be shortened by sharpening as much as m the inner edge, a, of a will still give the proper form to the outside of the wall 1 of such hole.

The Work which this cutting-tool performs is illustrated in Fig. 8, being the hole for the jewel,r being the wall of the hole for thejewel, thin at the top, and 8 being a space outside the wall 4'. The other end of i is for the purpose of setting the jewel by turning over the upper edge of r. A pin on one side of the part The lower endot z engages with a notch in thelower end of the socket formed in the part h, for the purpose of holding the part i in said socket.

Theoperation is as follows: The center of the 5 jewel-hole is first to be indicated upon the plate plate by a suitable tool.

0 bymaking a round indentation therein at the proper place. The plate is then placed looselyin the clamp A,and asharp-pointed centering-tool, B, is placed in the socketf, and the point of Bis made to enter the said indentation. Then the plate is to be clamped securely in that position in the clamp A, as shown in Fig. l. The plate will now be properly centered, and the entire operation of cutting the hole for the jewel and setting the same therein can be performed, the plate being held securely in this position in the clamp. The centering-tool B is now to be removed and a small hole drilled through the Then the tool D or E is to be placed in the socket f and rotated in contact with the plate Gin the usual manner, fitting the plate for the jewel, as shown in Fig. 8. The depth of the cutting can be regulated from time to time by means of the collar fixed at any desired point on h by the set-screw k, and by adjusting the feeder g upon the screwthreaded end of the socket f. Of course, when the collarj comes in contact with g, the cutting will cease, and if the jewel-hole is not deep enough g must be turned down a little and the cutting continued. When the plate is ready the jewel is to be placed in its seat 1), and i is to be reversed in h, and the tool replaced in the socket f, the end t of t' then being down and restingon the top of the wall 0'. Then by rotating the tool the upper edge of this wall 1' will be turned over the jewel, and at the sametime will be burnished.

The point I on i in Figs. 4, 5, 6, 7 is to be used in place of the centering-tool B for centerin g the plate (1. When a separate centeringtool, B, is used this point lmay be omitted, as shown in Fig. 3.

By the use of my device a jewel can be accuratelysetby an unskilled mechanic. \Vhen the plate has been once adjusted, which can easily be done, it will be held in place while the plate is fitted and jewel set. After the jewel has been set the back of the platecan be reamed out, first turning it over in the clamp.

By making the part t' removable a single shank orholder is sufiicient for any number of cutters otdifierentsizes; otherwise it would be necessary to make a complete tool foreach size of jewel to be set.

The point Z should be made detachable, so that it can be removed when the tool is sharpened. This can be done by providing a hole in the lowerend of the tool, in which to slip the point I, as shown in Fig. 9.

Thehead upon thetop of the screwcisloosely riveted thereto, so that the head will not turn after it comes in contact with the plate 0; but the screw 0 can still turn to clamp the plate in place. The object of this is to prevent the head at from m'arring the plate 0.

What I claim as new, and desire to secure by Letters Patent, is as follows:

1. A jewel-tool provided with two cutting parts, m and a, with a space, b,between them, the outer edge, c, of the part m and the inner edge, a, of the part a being both inclined, but in opposite directions, substantially as and for the purposes specified.

2. A jewel-setting tool provided with two cutting parts, on and a, in combination with a detachable centering-point, l, all substantially as and for the purposes specified.

3. A jewel-settingtool consisting ofa shank, h, provided with a socket at one end, and the removable and reversible device i, havinga cutter upon one end and a setting and burnishing device at the other end, such tool being adapted to be used in connection with the plate-holder 1A, substantially as and for the purpose speci- HANS ANDERSON.

Witnesses:

E. A. WEs'r, A. H. ADAMS. 

